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Atlas Transfer Case Install on a 108,000-Mile Sprinter
Key takeaways
- The Atlas replaces the factory transfer case on four-wheel-drive Sprinters only. It is not for 2WD or all-wheel-drive vans.
- It delivers a true 50/50 front-to-rear split and a proper low range, all mechanical, with no electronic stability system deciding where power goes.
- The rear differential has to be re-geared to 4.18 to match the factory front differential. Mismatched ratios will break parts.
- An ARB air locker must have been on the van for at least a year first. That is an Agile Offroad requirement and Adrenaline HQ follows it.
- A 2-inch front lift has to come off. The front propeller shaft angle is already at its limit at stock ride height.
- A Bilstein B6 strut and Agile coil assist conversion gives back nearly all the ride height, roughly half an inch of difference.
- The new drive lines use standard 3150 U-joints and carrier bearings, so they are serviceable at any auto parts store.
- Plan to leave the van about a week. The new gear set is heat cycled three times and driven 100 to 150 miles before handover.
Tim walks under a 108,000-mile Sprinter that has just had an Atlas transfer case installed, and explains the whole job: why the rear differential had to be re-geared, why the 2-inch front lift had to come off, how the twin sticks work, and what the van feels like afterwards.
This is one of the more involved builds we do, and it is deliberately not for every van. If you are considering it, the video covers the requirements before you call.
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